Ore-concentrating machine.



'G. W. ARNQLD.` ORE CONGENTRATING MACHINE.

APPLICATION FILED JUNE 26. 1913.

@ jl u .Patented Deo. 1.6, 1913.

` UNITED STATES PATENT OFFICE.

GEOEGEW. AENoLnoE DENVER, conomno, assrenoa or ONE-THIRD 'ro Hanni:

HEETznEEoE DENVER, coLonADo.

ORE-CONCENTRATING MACHINE.

Patented Dec. 16, 1913.

Application led June 26, 1913. Serial No. 775,920.

To all whom z' may concern:

Be it known that I, GEORGE W. ARNOLD, acitizen of the United States,residing in the cit and county of Denver and State of Co orado, haveinvented certaimnew and -useful Improvements in Ore-ConcentratingMachines; and Ido hereby declare the following to be a full, clear, andexact description of the invention, such as will, enable others skilledin the art to which it appertains tomake and use the same.

This invention relates to oreconcentrating machines for wet and dryconcentrating,

' and has for its object the separation of the material to be treated,being thrown into values or concentrated mineral from the angue orwaste, by a rot-ating adjustably lnclined'dish or pan with involuteriles or grooveson theA inside bottom of the pan, the

the pan at the riphery, and the pan dischargin the va ues or concentratethrough a centra outlet, and the gangue over the rim or flange ofthepan. l

This inventionA contemplates and embodies a structural feature, for theabove aurpose, which is sim'ple and inex ensivc .in rst cost andmaintenance; whicmay be freely manipulated b hand where water or power sis` not availab e, and is very efficient in its ogeration where waterand vpower -is availa le; the inclination of the pan being adcharacterof material, to be concentra ted wet or dry. Y

` The object of this invention is t0 avoid thev ditliculty experiencedin concentrating ore by centrifugal, vibrating or oscillating means, asa great dealof the values are lost, and the maintenance is very costly.

A further object of the invention is to produce a hand operated oreconcentrating machine, light in weight, that may be moved from place toplace,.so that it maybe used for dry placer mining, in deserts wherethere' 1s no 'w1.er, but an abundance of lacer sand, as this inventionis vcryrapid or' large outputs of concentrate with the d or wet methodst. I l

ca rry out my lnven 1onemp oy the novel clolixgstruction hereinafterfully described and claimed.

In the drawings accompanying this s il.

cation, like parts in the several views, ave been giventhe samereference numbers.

Figure 1 is a slde elevatlon of machine in operation. Fig. 2 is a frontview'of the same. Fig. 3 is a sectional view of a square rllle. Fig. 4is a sectional view of a narrow V riiile. Fig. 5 is a sectional view ofa wide V riiie. Fig. 6 is a sectional view of a round groove ritlle.Fig. 7 is a sectional View of an L channel ritlle. Fig. 8 lis asectional view of the pan and hollow shaft,

showing the riflles diminishing in height, as

they approach the central hollow shaft. Fig. 9 1s a sectional v iew ofa. square groove. Fig. 10 is a sectional view of a. narrow-V groove.Fig.' 11 isa sectional view of awide V groove. Fig. 12 is a sectionalviewr of a round groove. Fig'. 1,3 is a sectional view of an-L groove.Eig. 14 isa sectional view of the pan showing the grooves diminishing invdepth-as they. approach lthe central hollow shaft."

The pan 1 is substantially secured to the hollow shaft 2, and has at itsperiphery, the rim 3, with the' square involute milles 4,"se-

cured tothe inside bottom of the pan; the

outer ends of the riirlesarein Contact with the rim 3, andA the innerends of the rimes terminate at the central opening in the shaft. Forconcentrating ore of different radesand character, I use the differentkin s of`i'iles as shown, in Fig. 3 the square riiiledfih Fig. 4 thenarrow V rile 4', in Fig. 5, the wide Va'itile 42, in Fig. 6, the roundve riille L1**,in Fig. 7, the L channel-ri e 4*,

all the rittles diminish-in height as they approach the central openingof the pan as shown in Fig, 8. I also use eves which are c ut iu'to thepan 'as shown, in Fig. 9, as the square.V groove 5, in Fig. 10, as thenarrow V groove 5', in Fig. '11, as the wide V groove 5*, in Fig. 12, asthe round groove 5, in Fig. 13, as the L groove. 5, all the oovesdiminish in de th as they approach t e central hollow sha t. Theconcentrates or values 18 to 18" respectively are shown in the diierentriles and rooves in their relative positions when mac ine is inoperation.

The pan is rotated upon its central hdllow shaft, in the adjustablyinclined bearing l, which is locked in the desired '-Aangular psitiop bytheclamp 7, to the supporting 'ase 8. Rotary motion is impa to the811;"by'revolving the pulley'9, y 'a belt on'any suitable source ofenergy, or by los suitable means Vat the lower-.left hand partof thepan, the concentrates or values fall" tlnoughyt-he,central hollowshaftinto the value can'lfandfthe gangue l2 leaves the pan 'over the rimat the lower right hand part of the pan. When using this machine fo'r'wet-,concentration the dressing Water isy applied-by* means of the spraypipe 14.

sing" this "machine the material is thrown into the slowly revolvinginclined 'tpa,gat"the lowerfleft hand part' of the pan,

the'rimprevcnts this material from falling datand acts Aas a Yconveye/rto carry the material over .to the llowerA right hand part of; thef'panwhere'the rotary mot-ion causes this'material to tumble over vand over,which casestheheavy particles to pre'cipigxte tothe-'bottom'angle,"formed by the bottom of f' .paliandits rim,whereuitis taken up by the "Ifitlies orHgrooves and lcarried upward a short'iistance abone the horizontal center.

)1f-'randa Starts w ron and tumble down the tofjerrygthe vlesonly, tothe hole in the i` Central"! l iaft,jwhere it falls into the valuescan.: The gangucfv falls and `tumble's to the l lwer'iii'ghthand part ofpan on the rim,

` material-or form, as shown and described as iitil there acfeumulatesalarger amount J:than thefrlrn can carry, then the surplus rollsoyer'the'rim as gangue, free from any valueslf 'This rim' or {iange is avery important Apart. of this invention as it takes careof'itheimaterial that is fed into the pan, it

s, the riie'sor grooves, it produces quick precipitation; and dischargesthe gangue, and vIfvary its angular position in relation the pan fordifferent ores. lt is not to beu'nderstood, however, that the inventionifs'dii-tcdin thisrespect, to an)y particular it' `willi-be evidentthatmany changes mag;y bfmaidefinthe details, of construction, shovv-anddescribed Without departing from the scope of the invention.

Having thus described my invention, what I elaim anddesire to protect byLetters Patent of the United States is- 'Irian ore concentra'tor, arotatingadon the riflles and as the riflies' justably ,inclined flatpau, with a rim at cured to said pan and ay base supporting' said pan,.with adjustable means secured to said base for adjusting the angle ofinclination of said pan.

2. ln an orc eoncentrator, a rotating adjustably inclined flat pan, witha rim at right angles to the surface of the pan, a central hollow shaft.involute rililes secured to said pan, extending from said rim'to saidhollow shaft and means on the hollow lshaft for rotating the pan.

3. ln an ore coueentrator, a rotating adjustablv inclined flat pan, witha riu'l at right angles tofthe surface of the pam-a central hollowshaft, rifiles secured to Said pan extending from the rim to the centralhollow shaft, said rilles diminishing in height as they approach thecentral hollow shaft.

4, In an ore concentrator, a rotating ad.-

justably` inclined flat pan with a rimat right angles to the Isurface ofthe pan, a centrar hollow shaft, riflles secured to said pan extendingfrom the rim to the central hollow shaft, said rillles being involuteand diminishingr in height as they approach the central hollow shaft.

5. In an ore coneentrator, a rotating ad- -justably inclined fiat panwith ,a rim at `right angles to the surface of the pan, a eentral hollowshaft, riflles secured to sax! pan extending from the rim to the centralhollow shaft, square involute rilles diminishing in height as theyapproach the central h ol- 4low shaft.

6. ln an ore eoneentrator, a rotating adjustahly inclined flat pan, witha rim at right angles to the surface of the pan, a central hollow shaft,riflles secured tosaid pan, extending from the rim to the central hollowshaft. said rillles heinginvolute and diminishing` in height as the1approach the central hollow shaft, said rim being in eontact with theouter ends of the rillles, forniing wide anglesl between said rim andsaid 'rifllesu j l GEORGE V.- ARNOLD.

W itnesses foo

